Podoy 34mm Fuel Petcock Gas Tank Switch Valve for Yamaha Big Bear 400 YFM400 2002 - 2010 Gas Tank Petcock Valve Switch fits for Yamaha Big Bear 400 YFM400 2002 - 2010 Compatible Model:Yamaha YFM350FW YFM400 Big Bear Package including 1 x Petcock. Center to center mounting hole: 34mm.